Trees are useful in three important{#blank#}1{#/blank#}  .The most important way is that they  provide man with food , wood and other products. Trees provide food not only for man, but also for animals.{#blank#}2{#/blank#}trees, many animals could not live on the earth. It's not {#blank#}3{#/blank#} for man to live on the earth, either.
    The second important way is that trees give us shade(树荫). On a hot summer day, people are eager to have a rest under the shade of a tree after{#blank#}4{#/blank#}a long way. You can imagine how important the shade of a tree is to man and animals.
    The third important way is that trees help to{#blank#}5{#/blank#} droughts and flood. However, in many parts of the world, man hasn't realized it. He has cut trees down in large numbers. In the end, he finds that he has lost the best friends he had.

  dig   fast  traditional   nine   sky  

    Mrs Smith is my teacher．At school she{#blank#}1{#/blank#}us English．Her English is very good so we all like her．She has got two daughters，Gina and Helen．They are{#blank#}2{#/blank#}at our school．So I know some things about them Gina{#blank#}3{#/blank#}English very well．Helen is good at music．She plays the{#blank#}4{#/blank#}very well．She is in the Music{#blank#}5{#/blank#}．There,she and our music teacher Ms White help students with the piano．

wear,  we,  style,  other,  tell

A: Hi, Xu Hui! I hear that our school will make uniforms for us. Do you like wearing school uniforms?

B: Not really. I don't like wearing the same clothes as {#blank#}1{#/blank#}. It's boring.

A: What kind of clothes do you like to {#blank#}2{#/blank#}?

B: I like to wear clothes of my own {#blank#}3{#/blank#}. They're comfortable and make me feel good. But uniforms sometimes look ugly on us.

A: But the school uniform can show us good discipline.  Do you think so?

B: Yes, I agree. I think we students can design our uniforms by {#blank#}4{#/blank#}.

A: Sounds interesting! If we can design our own uniforms, we'll be glad to wear.

B: That's right. Let's write a letter to the headmaster and {#blank#}5{#/blank#} him about our ideas.

A: That's a good idea!

Henry: Hi, Emily. The May Day holiday is coming. What's your plan for it?

Emily: Well, let's have a trip together, OK?

Henry: Good idea! Where shall we go?

Emily: What about going to Qingdao{#blank#}1{#/blank#}?

Henry: I'm afraid that's not a good idea. Qingdao is not suitable for travelling at this time of year.

Emily: I see. Then how about Beijing? There are many{#blank#}2{#/blank#}

Henry: But I{#blank#}3{#/blank#} there a few times.

Emily: Then what's your idea?

Henry: I hear Jiuzhaigou is {#blank#}4{#/blank#} to the public recently. And it's much more beautiful than before.

Emily: Yeah. It's really a place of nature. And our government spends much money rebuilding it.

It's well worth {#blank#}5{#/blank#}.

Henry: OK. Turn on the computer and find more information about it.